SLUUD44 June   2025 UCC57142

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  6. 2Hardware
    1. 2.1 Additional Images
    2. 2.2 Power Requirements
    3. 2.3 Setup for Different UCC57142 Variants
    4. 2.4 I/O Description
    5. 2.5 Jumper Information
    6. 2.6 DBV Package Compatibility
      1. 2.6.1 UCC27511 Modification
      2. 2.6.2 UCC27517 and UC27533 Modification
        1. 2.6.2.1 UCC27518, UCC27519, UCC27536, and UCC27537 Modification
      3. 2.6.3 UCC27531 and UCC27532 Modification
      4. 2.6.4 UCC44273 Modification
  7. 3Implementation Results
    1. 3.1 Equipment Setup
      1. 3.1.1 Power Supply
      2. 3.1.2 Function Generator
      3. 3.1.3 Oscilloscope
      4. 3.1.4 Digital Multimeter (DMM)
    2. 3.2 Bench Setup
    3. 3.3 Procedure and Results
    4. 3.4 Typical Performance Waveforms
      1. 3.4.1 Normal Operation
      2. 3.4.2 Overcurrent Protection Feature
  8. 4Hardware Design Files
    1. 4.1 Schematic
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Compliance Information
  10. 6Additional Information
    1. 6.1 Trademarks

2.6.3 UCC27531 and UCC27532 Modification

The UCC57142EVM out-the-box can be made compatible with the UCC27531 and UCC27532 through the following modifications:

  1. Remove any jumpers present on the EVM.
  2. Remove R1, R3, R4, R7, R13, C4, C9, and D1.
  3. Short R8, R11, and C5.
  4. Adjust R6 and R10 to your desired gate resistance
  5. Adjust C8 to your desired load value.
  6. Populate C1 with a 1μF capacitor (VDD bypass capacitor)

Table 2-8 lists how the I/O headers will be used for the UCC27531 and UCC27532.

Table 2-8 Header Functionality
EVM Header Function
OCP / OCP_IN EN pin / EN signal input
GND_IO IN pin
OUT / Gate VDD pin / unused
VDD / VCC GND pin / unused
EN/FLT / EN/FLT_IN OUTL pin / unused
IN / IN_IN OUTH pin / Gate